New two-dimensional niobium and vanadium carbides as promising materials for Li-ion batteries

Michael Naguib; Joseph Halim; Jun Lu; Kevin M Cook; Lars Hultman; Yury Gogotsi; Michel W Barsoum

doi:10.1021/ja405735d

New two-dimensional niobium and vanadium carbides as promising materials for Li-ion batteries

J Am Chem Soc. 2013 Oct 30;135(43):15966-9. doi: 10.1021/ja405735d. Epub 2013 Oct 21.

Authors

Michael Naguib¹, Joseph Halim, Jun Lu, Kevin M Cook, Lars Hultman, Yury Gogotsi, Michel W Barsoum

Affiliation

¹ Department of Materials Science & Engineering, Drexel University , Philadelphia, Pennsylvania 19104, United States.

PMID: 24144164
DOI: 10.1021/ja405735d

Abstract

New two-dimensional niobium and vanadium carbides have been synthesized by selective etching, at room temperature, of Al from Nb2AlC and V2AlC, respectively. These new matrials are promising electrode materials for Li-ion batteries, demonstrating good capability to handle high charge-discharge rates. Reversible capacities of 170 and 260 mA·h·g(-1) at 1 C, and 110 and 125 mA·h·g(-1) at 10 C were obtained for Nb2C and V2C-based electrodes, respectively.